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#BS-2018-MERGLS-5C41

2018 Mercedes Benz Gls 550

Based on reports from 7 owners and 3 recalls for this exact model.

Complaints

Crashes

Fires

Recalls

TSBs

✅

Preliminary Verdict

Green Light

Based on 7 complaints, 0 crashes, 0 fires, and 3 recalls.

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Mechanic Inspection Checklist

!Check the ElectricalHIGH

1 owners reported electrical issues — failures commonly reported around 7K miles.

!Inspect the DrivetrainMED

Look for symptoms of wear and premature failure

+ 4 more items in full checklistUnlock

30,000-Mile Cost Projection

Best Case

$X,XXX

Most Likely

$X,XXX

Worst Case

$X,XXX

Top cost driver: Electrical (1 reports).

Includes fuel costs, common repairs, and recall riskUnlock

Also in your report

Owner Intelligence

AI-synthesized themes from real complaints

Buyer Lot Checklist

Questions, test drive checks, walk-away triggers

Negotiation Talking Points

Data-backed dollar deductions

Buy / Skip Verdict

Final recommendation with conditions

10 sections total in the full reportUnlock all

Where the complaints fall

Other2 (29%)

Electrical1 (14%)

Drivetrain1 (14%)

Seat Belts1 (14%)

Service Brakes, Air:disc:rotor1 (14%)

Visibility1 (14%)

2018 Mercedes Benz Gls 550: Known Issues & Problem Areas

Electrical Issues

Electrical complaints account for 14% of all reports filed for the 2018 Mercedes Benz Gls 550, with 1 owners filing complaints with NHTSA. The median mileage at time of complaint is 7,000 miles, suggesting issues tend to surface around the 7K-mile mark.

Drivetrain Issues

Drivetrain complaints account for 14% of all reports filed for the 2018 Mercedes Benz Gls 550, with 1 owners filing complaints with NHTSA. Owners should pay attention to drivetrain-related symptoms during test drives and pre-purchase inspections.

Seat Belts Issues

Seat Belts complaints account for 14% of all reports filed for the 2018 Mercedes Benz Gls 550, with 1 owners filing complaints with NHTSA. Owners should pay attention to seat belts-related symptoms during test drives and pre-purchase inspections.

Service Brakes, Air:disc:rotor Issues

Service Brakes, Air:disc:rotor complaints account for 14% of all reports filed for the 2018 Mercedes Benz Gls 550, with 1 owners filing complaints with NHTSA. Owners should pay attention to service brakes, air:disc:rotor-related symptoms during test drives and pre-purchase inspections.

Data sourced from NHTSA owner complaints and community reports. The full report analyzes severity, repair costs, and failure patterns for each category.

Complaint trend by year

Complaints filed with NHTSA by year for the 2018 Mercedes Benz Gls 550. Recent trend: increasing.

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Repair costs • Negotiation scripts • Mechanic checklist • Buy/skip verdict

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Recall History (3 recalls)

17V816000Mar 2018

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2017 GLE400 4Matic, GLE350 4Matic, GLE350, GLE550e 4Matic, GLE43 AMG 4Matic, GLE63 AMG 4Matic, GLS450, GLE63S 4Matic, GLS63 4Matic, S550e, S600, S63 AMG 4Matic, S65 AMG, S550, Mercedes-Maybach S600, Mercedes-Maybach S550 4Matic, GLE43 AMG 4Matic Coupe, GLE63S 4Matic Coupe, 2017-2018 GLS550 4Matic, S550 4Matic, 2018 S450, and S63 AMG 4Matic vehicles. The rear passenger door on the driver side may indicate that it is locked, when it may not be. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 206, "Door Locks and Door Retention Components."

18V539000Sep 2018

SERVICE BRAKES, HYDRAULIC

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2018 Mercedes-Benz GLE350 4Matic, GLE350, GLS450 4Matic, GLS550 4matic, GLE43 AMG 4Matic, GLE63 AMG 4Matic, GLE63S AMG 4Matic, and GLS63 AMG 4Matic vehicles. The rear brake caliper pistons on these vehicles may not have been correctly coated, causing gas to become temporarily released into the rear brake hydraulic circuit, reducing braking performance.

21V058000Mar 2021

COMMUNICATION: AUTO CRASH NOTIFICATION

Mercedes-Benz USA, LLC (MBUSA) is recalling certain 2016 - 2021 CLA-Class, GLA-Class, GLE-Class, GLS-Class, SLC-Class, A-Class, GT-Class, C-Class, E-Class, S-Class, CLS-Class, SL-Class, B-Class, GLB-Class, GLC-Class, and G-Class vehicles. Please refer to the Part 573 report for specific vehicle model details. The software design of the communication module may fail to communicate the correct vehicle location for the emergency call system (eCall) in the event of a crash.

Recall severity analysis & seller scripts

The full report rates each recall's severity and gives you scripts for asking the seller about recall completion.

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About this data

NHTSA Complaints

Federal database of owner-filed safety complaints. 7 records for this vehicle.

NHTSA Recalls

Manufacturer-issued safety recalls. 3 recalls found for this vehicle.

Repair Cost Data

Real-world repair costs from owner reports and independent databases.

Other Mercedes Benz Gls 550 Model Years

2019 2018

View all Mercedes Benz Gls 550 years →

2018 Mercedes Benz Gls 550: Frequently Asked Questions

What is the most common problem with the 2018 Mercedes Benz Gls 550?

The most commonly reported issue with the 2018 Mercedes Benz Gls 550 is related to the electrical, with 1 complaints filed with NHTSA.

Is the 2018 Mercedes Benz Gls 550 reliable?

The 2018 Mercedes Benz Gls 550 has 7 complaints, 0 crash reports, and 0 fire reports filed with NHTSA. The full report analyzes whether these numbers indicate real risk or are proportional to the vehicle’s popularity.

How much does it cost to fix 2018 Mercedes Benz Gls 550 problems?

Repair costs vary by issue. The full BumperScan report includes detailed repair cost estimates (low/median/high) for every major issue, plus a 30,000-mile total cost of ownership projection.

Does the 2018 Mercedes Benz Gls 550 have any recalls?

Yes, the 2018 Mercedes Benz Gls 550 has 3 recalls on record. The full report includes recall severity analysis and scripts for asking the seller about recall completion.

What mileage do Mercedes Benz Gls 550 problems start?

Based on 5 complaints with mileage data, the median mileage at time of complaint is 7,000 miles. The highest concentration of reported issues occurs in the 0–30K mile range. The full report breaks down exactly which components fail at each mileage bracket.

What’s in the full report?

10 sections of AI analysis: severity-ranked issues, component scores (0-100), 30K-mile cost projection, failure timeline by mileage, recall details with seller scripts, owner sentiment analysis, mechanic checklist, buyer lot checklist, negotiation ammo with dollar figures, and a buy/skip verdict.

How is this different from free NHTSA data?

NHTSA gives you raw complaint text. BumperScan cross-references 2.1M+ complaints with community repair cost data, EPA fuel data, and recall records — then uses AI to synthesize it into actionable advice with dollar figures.

How is this different from Carfax?

Carfax is VIN-specific history ($45/report). BumperScan is model-level reliability intelligence — what problems this car is known for, what they cost, and whether you should buy it. Complementary, not competing.

What if the report isn’t useful?

100% money-back guarantee. If the report doesn’t help you make a more informed decision, we’ll refund you — no questions asked.

Get the Full 2018 Mercedes Benz Gls 550 Report

10 sections of AI analysis based on 7 owner reports. Know before you buy.

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